Most of the 184 domestic airports operate at a loss every year. The China Airport Development Fund, 6 percent of whose revenues Chinese carriers contribute, subsidizes the losses. Last year 144 airports, including a few classified as regional, posted a combined loss of $1.97 billion.

USB device viruses could evade all known securityUSB devices such as keyboards, thumb-drives and mice can be used to hack into personal computers in a potential new class of attacks that evade all known security protections, a top computer researcher revealed on Thursday.

Cracks emerged in concrete girders. A drainage hole on the bridge deck plugged up. Rust showed above piers. Seven years after the collapse of its predecessor, the new Interstate 35W bridge has been showing its age.

How much did subprime loans fuel the GDP boom?It'd be tempting to think that the days of subprime loans fueling the economy were a product of the era of the aged or departed Ace Greenberg, Alan Greenspan and Angelo Mozilo. Except when you break down the growth in GDP, it's clear that car and light truck purchases played a major role. And subprime loans, in turn, are financing those transactions.